Designed for lower-level undergraduate or high school students, these two volumes provide three to six pages of entries on 125 subjects ranging from acid rain and deposition to the Yellow River. Each segment begins with definitions of key terms and ends with suggested further reading. Edited by Boorstein (Long Island U.) and Renneboog (independent scholar), this work includes a lengthy glossary and bibliography, along with four appendixes providing information such as a worldwide history of severe weather events. Annotation ©2013 Book News, Inc., Portland, OR (booknews.com)